Fasco B47120 Centrifugal Blower Review: Moves 180 CFM of Air with Three Speeds

Fasco B47120 Overview

Fasco B47120 Centrifugal Blower moves 180 CFM of air for users who need a three-speed blower with a 115 Volts power supply.

Moving 180 CFM of air allows for rapid ventilation in a workspace, ensuring that dust or fumes are cleared from the area quickly. This volume of air moved is the primary metric for how much air the system processes every minute.

The Fasco B47120 achieves this output while offering three different speeds (1360/1100/830 RPM), allowing you to adjust the intensity of the airflow as your needs change. It maintains this performance while weighing only 8 pounds.

We evaluated 8 centrifugal blowers and selected this model for a full review because it has 128 buyer ratings, the 1st most of the 8 screened. Our full review is based on a spec breakdown of the products we evaluated. This review is for budget-conscious shoppers seeking a high-volume air mover.

The Short Answer on the Fasco B47120

Best for: you need a three-speed centrifugal blower that moves 180 CFM of air for a small-scale workshop or industrial application.

The Fasco B47120 is a practical choice for this task at around $147.66.

• Pro: The three-speed motor allows you to select between 830, 1100, and 1360 RPM to match your specific airflow needs.
• Pro: It includes thermal protection to prevent the motor from overheating during operation.
• Pro: The 115V power requirement allows for standard outlet use without specialized high-voltage wiring.
• Con: The 8-pound weight makes it less portable than smaller, handheld air movers.
• Con: The 12.8-inch length requires a workspace with sufficient clearance for the blower housing.

Don’t buy this if: your application requires static pressure exceeding the limits of a standard centrifugal blower, as this unit is not rated for high-pressure industrial ductwork.

Price assessment: The $147.66 price point is fair for a UL-recognized blower with three distinct speed settings.

Technical Specifications for the 180 CFM Centrifugal Blower

The 180 Cubic Feet Per Minute Airflow Capacity measures the volume of air moved through the system per unit of time.

Before You Buy: Centrifugal Blower Checklist

The first thing to check is your available mounting space to ensure the blower fits your specific enclosure.

• ✓ Measure your mounting area and compare it against the 12.8 x 11.7 x 5.7 inch dimensions to ensure the unit fits without obstructing nearby components.
• ✓ Confirm your power source provides 115 Volts to avoid a power mismatch that prevents the blower from starting.
• ✓ Verify your required airflow is 180 CFM or less, as a blower with lower capacity will fail to move air through your specific ducting.
• ✓ Check that your application’s static pressure requirements are met by the blower’s design, as a static pressure mismatch means the fan cannot move air through long runs or restrictive filters.
• ✓ Confirm your operating environment is suitable for sleeve bearings, which can lead to bearing seizure if used outside the rated duty cycle or in extreme conditions.

You should not buy this blower if your setup requires a specialized high-pressure industrial blower that exceeds the 180 CFM nameplate capacity.

What These Specifications Let You Do

Selecting from three speeds to control 180 CFM airflow

The Fasco B47120 provides three speed options to move 180 CFM (cubic feet per minute) of air, which measures the volume of air moved through the system per unit of time. You can select different speeds to match specific ventilation needs, from low-volume circulation to higher-demand airflow. Does this blower provide enough volume for your specific ductwork? The 180 CFM rating allows it to handle standard ventilation tasks while keeping power requirements manageable.

Operating at 1360, 1100, or 830 RPM (revolutions per minute) allows you to scale the air movement based on the resistance of your system. These three speeds let you adjust the blower to different workloads, such as providing consistent airflow for a workshop or a more targeted push for a specific ventilation run. Because the blower provides three distinct speeds, you can choose a setting that balances the required volume against the noise and power draw of your application.

How a sleeve bearing maintains consistent rotation during operation

The Fasco B47120 uses a sleeve bearing, a type of bearing where the shaft rotates within a lubricated sleeve to reduce friction. This design helps the unit maintain consistent rotation during continuous operation in various environments. While it provides a reliable way to support the impeller, it is generally intended for standard industrial use rather than high-pressure applications that might exceed the bearing’s duty cycle.

Sleeve bearings are a standard choice for many centrifugal blowers where steady performance is required. Because the Fasco B47120 uses this bearing type, it is suited for consistent air movement tasks where the blower is not subjected to extreme, continuous high-pressure loads. If you require a blower for a specific environment, ensure the operating conditions remain within the limits of a sleeve-bearing design to prevent wear over time.

Thermal protection and UL recognition for safe motor operation

The Fasco B47120 is UL recognized and includes thermal protection to prevent the motor from overheating during operation. This means the unit meets specific safety standards for electrical components and includes a mechanism to shut down if internal temperatures exceed safe limits. These features provide a layer of protection for your electrical system and the surrounding workspace.

The 115V, 1.95 amp power requirements are supported by a design that prioritizes safety standards like UL and CSA/ULc certifications. These certifications indicate that the blower has been evaluated against recognized safety requirements for industrial equipment. Because the Fasco B47120 is thermallly protected, you can run it with confidence that the motor has a built-in safeguard against overheating during extended use.

The Fasco B47120 Against Similar Centrifugal Blowers

When you need to move air through a system with specific resistance, the Fasco B47120 provides 180 CFM of airflow capacity. This volume of air moved per unit of time allows for consistent circulation in environments requiring steady movement.

• The Sunlight Supply Inc. HGC736570 Hurricane Inline Centrifugal Fan costs $10.90 less than the Fasco B47120.
• The Fasco B24220 Centrifugal Blower is $27.17 cheaper than the Fasco B47120.
• The Dayton 1TDR7 Model Blower costs $32.21 less than the Fasco B47120.
• The Usoraszkt Ventilation Fans Laboratory Centrifugal Blower is $38.34 more expensive than the Fasco B47120.

If you require the highest possible volume of air for a large space, choose the Fasco 50756-D500 Centrifugal Blower instead of the Fasco B47120.

You may also want to see our full Fasco 50756-D500 review for a complete data breakdown.

Setting Up This Centrifugal Blower, and What Support Covers

Powering and Mounting the Fasco B47120

You must have a 115V power source available before the Fasco B47120 can operate. This blower moves 180 CFM of air, which determines the volume of air moved through your system per unit of time.

1. Unpack the Fasco B47120 and inspect the 12.8 x 11.7 x 5.7 inch housing for shipping damage.
2. Mount the unit to a stable surface using a vibration isolator to reduce structural noise and mechanical wear.
3. Connect the 115V power supply to the unit’s electrical input.
4. Attach the flexible ducting to the ports; confirm the ducting matches the port size since the listing does not state the specific diameter.
5. Select one of the three speeds—830, 1100, or 1360 RPM—to set your desired airflow.

Warranty and Support: What to Check

Warranty coverage and support terms vary by seller and country. Verify these details before your return window closes to ensure you are covered.

• Confirm the motor’s thermal protection status to ensure the unit shuts down if it overheats.
• Verify the sleeve bearing condition, as these are non-serviceable parts that dictate the blower’s lifespan.
• Check that the 115V rating matches your local power supply to avoid electrical failure.
• Identify the specific port diameter on the unit to ensure your ducting fits without leaks.

Run the Fasco B47120 at its lowest speed for ten minutes the day it arrives to confirm the motor starts and the airflow is consistent.

Fasco B47120 Buying Questions Answered

UL and CSA certifications for commercial centrifugal blower safety

The Fasco B47120 is UL recognized and CSA or ULc certified. These certifications verify the unit meets safety standards for electrical and mechanical components, which is a requirement for many commercial and industrial installations.

A sleeve bearing is a type of bearing where the shaft rotates within a fitted sleeve; this design allows the Fasco B47120 to operate with a 1360/1100/830 RPM free air speed. While it provides a stable rotation for moving air, the 1.95 amps of current draw means you should confirm your power supply can handle the load before installation. For example, this blower could move air through a localized ventilation duct in a workshop to keep a soldering station cool.

Is it safe to use in a commercial or industrial setting?

Yes, the Fasco B47120 is safe for commercial use because it holds UL and CSA certifications. These ratings ensure the blower meets the rigorous safety standards required for professional environments.

Is the Fasco B47120 Right for You?

Who the Fasco B47120 suits and the jobs it is the wrong choice for, listed below with the reason for each.

Where to Buy This Centrifugal Blower

When we looked in November 2026, the Fasco B47120 was listed at $147.66 – a snapshot that may have changed since.

Centrifugal blowers are sold by the retailers below – we do not track which of them has the Fasco B47120 in stock, so check availability and the current price with the retailer before making a trip.

• McMaster-Carr (online only) — extensive catalog of industrial blowers and fans
• Amazon (online only) — wide variety of consumer and radon mitigation fans
• Home Depot (online and physical stores) — in-store availability for residential ventilation fans
• Lowe’s (online and physical stores) — in-store availability for residential ventilation fans
• RadonAway (online only) — specialist retailer for radon mitigation centrifugal fans
• Rockler Woodworking (online only) — specialty blowers for woodworking and dust collection
• Grainger (online and physical stores) — business and trade accounts for industrial components

Final Verdict on the Fasco B47120

If you need a compact centrifugal blower for a 115V circuit that handles moderate air volumes, the Fasco B47120 is a practical choice at around $147.66. You should confirm your required airflow before ordering, as this unit moves 180 CFM (cubic feet per minute), which is the volume of air moved through the system per unit of time.

The Fasco B47120 includes a sleeve bearing, a type of bearing that allows the shaft to rotate within a lubricated sleeve, which helps maintain the 1360/1100/830 RPM free air speeds. Because it is a three-speed blower, you can adjust the rotational speed to find the right balance for your specific ventilation needs. Selecting a blower with insufficient airflow capacity means it will fail to move air through long runs or restrictive filters.

You should measure your available mounting space and confirm the 12.8 x 11.7 x 5.7 inch dimensions fit your setup. Choosing a blower with the wrong voltage or physical dimensions can result in a return or a failed installation that requires a professional to correct. The Fasco B47120 is UL recognized and CSA or ULc certified, meeting standard safety requirements for industrial use.

You should choose the Fasco B47120 if you need a 115V centrifugal blower that provides 180 CFM of airflow for a small-scale ventilation project. The unit is available for around $147.66.

The Fasco B47120 ranks as a reliable option for this price point, supported by a 4.4 rating from 128 buyers. This rating provides a consistent signal of buyer satisfaction across a large sample size.

Skip it if: You require a blower capable of high-pressure industrial ductwork or need a higher airflow capacity than 180 CFM.